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(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Physics

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Physics
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A beam of α, β and γ rays is travelling through a certain region in space.

  1. Arrange them in ascending order of ionising power.
  2. Which of the above will pass undeviated if subjected to an electric field?
  3. With respect to your answer to part (b) above, what will be the change in the nucleus of an atom after such a ray is emitted.
[12] Radioactivity
Chapter: [12] Radioactivity
Concept: undefined >> undefined

When the speed of a moving object is doubled, then its kenetic energy ______.

[2] Work, Energy and Power
Chapter: [2] Work, Energy and Power
Concept: undefined >> undefined

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A metal foot ruler is held at the edge of a table. It is pressed at its free end and then released. It vibrates.

  1. Name the vibrations produced.
  2. State one way to increase the frequency of these vibrations.
[7] Sound
Chapter: [7] Sound
Concept: undefined >> undefined

A car of mass 120 kg is moving at a speed 18 km/h and it accelerates to attain a speed of 54 km/h in 5 seconds. Calculate:

  1. the work done by the engine.
  2. the power of the engine.
[2] Work, Energy and Power
Chapter: [2] Work, Energy and Power
Concept: undefined >> undefined

Which nuclear radiation will travel undeviated in an electric field?

[12] Radioactivity
Chapter: [12] Radioactivity
Concept: undefined >> undefined

Which of the following radiations suffer maximum deflection in a magnetic field?

[12] Radioactivity
Chapter: [12] Radioactivity
Concept: undefined >> undefined

When a bell fixed on a cycle rings, then the energy conversion that takes place is ______.

[2] Work, Energy and Power
Chapter: [2] Work, Energy and Power
Concept: undefined >> undefined

When a stone tied to a string is rotated in a horizontal plane, the tension in the string provides ______ force necessary for circular motion.

[1] Force
Chapter: [1] Force
Concept: undefined >> undefined

A non uniform beam of weight 120 N pivoted at one end is shown in the diagram below. Calculate the value of F to keep the beam in equilibrium.

[1] Force
Chapter: [1] Force
Concept: undefined >> undefined

The kinetic energy of a given body depends on the ______.

[2] Work, Energy and Power
Chapter: [2] Work, Energy and Power
Concept: undefined >> undefined

If the mass as well as the velocity of a body is doubled then the kinetic energy of the body ______ the initial kinetic energy.

[2] Work, Energy and Power
Chapter: [2] Work, Energy and Power
Concept: undefined >> undefined

O is a luminescent particle trapped inside a glass block. A student traces the path of rays coming out of it and reflecting over a plane mirror as shown in the diagram below.

Complete the table, using the labels from the figure. The first label is done for you.

Sr. No. Description Label
a. An angle of reflection on the mirror a
b. A partially reflected ray in the glass slab  
c. A critical angle  
d. A refracted ray  
e. An angle of refraction of the ray R  
[4] Refraction of Light at Plane Surfaces
Chapter: [4] Refraction of Light at Plane Surfaces
Concept: undefined >> undefined

What mass of ice at 0°C added to 2.1 kg water, will cool it down from 75°C to 25°C? Given Specific heat capacity of water = 4.2 Jg-1 °C-1, Specific latent heat of ice = 336 Jg-1.

[11] Calorimetry
Chapter: [11] Calorimetry
Concept: undefined >> undefined

Find the kinetic energy of a body of mass 5 kg moving with a uniform velocity of 10 m s-1.

[2] Work, Energy and Power
Chapter: [2] Work, Energy and Power
Concept: undefined >> undefined

A ball of mass 0.5 kg slows down from a speed of 10 m s−1 to that of 6 m s−1. Calculate the change in the kinetic energy of the ball.

[2] Work, Energy and Power
Chapter: [2] Work, Energy and Power
Concept: undefined >> undefined

State one use of a fixed pulley.

[3] Machines
Chapter: [3] Machines
Concept: undefined >> undefined

A tuning fork is vibrating in air. State whether the vibrations are natural or damped?

[7] Sound
Chapter: [7] Sound
Concept: undefined >> undefined

The figure below shows a dual control switch circuit use to light a bulb.

  1. Complete the circuit so that bulb is switched on.
  2. Mark the supply terminals with L and N to indicate live and neutral wires.
[9] Household Circuits
Chapter: [9] Household Circuits
Concept: undefined >> undefined

Arrange the α, β and γ radiations in ascending order of their penetrating power.

[12] Radioactivity
Chapter: [12] Radioactivity
Concept: undefined >> undefined

Give one example of static equilibrium.

[1] Force
Chapter: [1] Force
Concept: undefined >> undefined
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